./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f645b80d4169704e02b3c19c65a00755e1e28cc942f5a2526cd4b4e1dcca30cf ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:35:33,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:35:33,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:35:33,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:35:33,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:35:33,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:35:33,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:35:33,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:35:33,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:35:33,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:35:33,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:35:33,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:35:33,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:35:33,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:35:33,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:35:33,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:35:33,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:35:33,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:35:33,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:35:33,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:35:33,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:35:33,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:35:33,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:35:33,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:35:33,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:35:33,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:35:33,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:35:33,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:35:33,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:35:33,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:35:33,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:35:33,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:35:33,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:35:33,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:35:33,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:35:33,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:35:33,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:35:33,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:35:33,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:35:33,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:35:33,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:35:33,262 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:35:33,297 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:35:33,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:35:33,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:35:33,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:35:33,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:35:33,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:35:33,300 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:35:33,300 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:35:33,301 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:35:33,301 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:35:33,301 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:35:33,301 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:35:33,302 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:35:33,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:35:33,302 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:35:33,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:35:33,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:35:33,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:35:33,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:35:33,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:35:33,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:35:33,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:35:33,304 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:35:33,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:35:33,304 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:35:33,305 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:35:33,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:35:33,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:35:33,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:35:33,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:35:33,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:35:33,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:35:33,315 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:35:33,315 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f645b80d4169704e02b3c19c65a00755e1e28cc942f5a2526cd4b4e1dcca30cf [2021-10-28 09:35:33,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:35:33,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:35:33,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:35:33,649 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:35:33,650 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:35:33,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c [2021-10-28 09:35:33,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/data/fc99bdecb/7065a868d28f4b6c937cb07a909a0268/FLAGff483341e [2021-10-28 09:35:34,256 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:35:34,257 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c [2021-10-28 09:35:34,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/data/fc99bdecb/7065a868d28f4b6c937cb07a909a0268/FLAGff483341e [2021-10-28 09:35:34,566 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/data/fc99bdecb/7065a868d28f4b6c937cb07a909a0268 [2021-10-28 09:35:34,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:35:34,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:35:34,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:35:34,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:35:34,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:35:34,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:35:34" (1/1) ... [2021-10-28 09:35:34,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d903df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:34, skipping insertion in model container [2021-10-28 09:35:34,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:35:34" (1/1) ... [2021-10-28 09:35:34,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:35:34,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:35:35,025 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c[18939,18952] [2021-10-28 09:35:35,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:35:35,043 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:35:35,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c[18939,18952] [2021-10-28 09:35:35,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:35:35,229 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:35:35,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35 WrapperNode [2021-10-28 09:35:35,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:35:35,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:35:35,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:35:35,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:35:35,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (1/1) ... [2021-10-28 09:35:35,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (1/1) ... [2021-10-28 09:35:35,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:35:35,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:35:35,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:35:35,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:35:35,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (1/1) ... [2021-10-28 09:35:35,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (1/1) ... [2021-10-28 09:35:35,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (1/1) ... [2021-10-28 09:35:35,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (1/1) ... [2021-10-28 09:35:35,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (1/1) ... [2021-10-28 09:35:35,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (1/1) ... [2021-10-28 09:35:35,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (1/1) ... [2021-10-28 09:35:35,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:35:35,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:35:35,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:35:35,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:35:35,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (1/1) ... [2021-10-28 09:35:35,461 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:35:35,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:35,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:35:35,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:35:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:35:35,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:35:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:35:35,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:35:36,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:35:36,645 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-10-28 09:35:36,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:35:36 BoogieIcfgContainer [2021-10-28 09:35:36,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:35:36,649 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:35:36,649 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:35:36,654 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:35:36,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:35:36,655 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:35:34" (1/3) ... [2021-10-28 09:35:36,656 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c028afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:35:36, skipping insertion in model container [2021-10-28 09:35:36,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:35:36,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:35" (2/3) ... [2021-10-28 09:35:36,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c028afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:35:36, skipping insertion in model container [2021-10-28 09:35:36,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:35:36,658 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:35:36" (3/3) ... [2021-10-28 09:35:36,659 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2021-10-28 09:35:36,709 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:35:36,710 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:35:36,710 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:35:36,710 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:35:36,710 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:35:36,711 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:35:36,711 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:35:36,711 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:35:36,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 states, 117 states have (on average 1.547008547008547) internal successors, (181), 117 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:36,762 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-10-28 09:35:36,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:35:36,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:35:36,772 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:36,773 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:36,773 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:35:36,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 states, 117 states have (on average 1.547008547008547) internal successors, (181), 117 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:36,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-10-28 09:35:36,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:35:36,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:35:36,785 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:36,786 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:36,792 INFO L791 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 40#L-1true havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 55#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 24#L83true main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 51#L177true assume 0 != main_~tmp~0; 77#L151true ~methAndRunningLastTime~0 := 0; 95#L200true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 99#L211-1true [2021-10-28 09:35:36,793 INFO L793 eck$LassoCheckResult]: Loop: 99#L211-1true assume !false; 22#L560true assume test_~splverifierCounter~0 < 4; 63#L561true test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 38#L569true assume !(0 != test_~tmp~6); 5#L569-1true test_~tmp___0~3 := test_#t~nondet43;havoc test_#t~nondet43; 10#L579true assume !(0 != test_~tmp___0~3); 9#L579-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 12#L589true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 54#L597-2true assume !(0 != ~pumpRunning~0); 62#L351true assume !(0 != ~systemActive~0); 13#L358true havoc __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_#t~ret10, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 16#L281true __utac_acc__Specification2_spec__2_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret9;havoc __utac_acc__Specification2_spec__2_#t~ret9; 91#L211true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 99#L211-1true [2021-10-28 09:35:36,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:36,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 09:35:36,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:36,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296126331] [2021-10-28 09:35:36,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:36,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:35:37,103 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:35:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:35:37,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:35:37,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:37,353 INFO L85 PathProgramCache]: Analyzing trace with hash 5462155, now seen corresponding path program 1 times [2021-10-28 09:35:37,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:37,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273240106] [2021-10-28 09:35:37,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:37,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:37,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:37,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273240106] [2021-10-28 09:35:37,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273240106] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:37,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:37,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:35:37,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097192855] [2021-10-28 09:35:37,444 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:35:37,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:37,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:35:37,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:35:37,465 INFO L87 Difference]: Start difference. First operand has 118 states, 117 states have (on average 1.547008547008547) internal successors, (181), 117 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:37,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:37,533 INFO L93 Difference]: Finished difference Result 118 states and 171 transitions. [2021-10-28 09:35:37,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:35:37,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 171 transitions. [2021-10-28 09:35:37,541 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-28 09:35:37,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 111 states and 163 transitions. [2021-10-28 09:35:37,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2021-10-28 09:35:37,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 111 [2021-10-28 09:35:37,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 163 transitions. [2021-10-28 09:35:37,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:35:37,556 INFO L681 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2021-10-28 09:35:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 163 transitions. [2021-10-28 09:35:37,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-10-28 09:35:37,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.4684684684684686) internal successors, (163), 110 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:37,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2021-10-28 09:35:37,592 INFO L704 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2021-10-28 09:35:37,592 INFO L587 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2021-10-28 09:35:37,592 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:35:37,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 163 transitions. [2021-10-28 09:35:37,596 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-28 09:35:37,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:35:37,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:35:37,597 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:37,597 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:37,598 INFO L791 eck$LassoCheckResult]: Stem: 355#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 309#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 310#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 282#L83 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 283#L177 assume 0 != main_~tmp~0; 324#L151 ~methAndRunningLastTime~0 := 0; 341#L200 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 347#L211-1 [2021-10-28 09:35:37,598 INFO L793 eck$LassoCheckResult]: Loop: 347#L211-1 assume !false; 279#L560 assume test_~splverifierCounter~0 < 4; 280#L561 test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 306#L569 assume !(0 != test_~tmp~6); 247#L569-1 test_~tmp___0~3 := test_#t~nondet43;havoc test_#t~nondet43; 248#L579 assume !(0 != test_~tmp___0~3); 254#L579-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 255#L589 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 261#L597-2 assume !(0 != ~pumpRunning~0); 253#L351 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 328#L409 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 257#L383-1 assume !(0 == ~pumpRunning~0); 259#L358 havoc __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_#t~ret10, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 262#L281 __utac_acc__Specification2_spec__2_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret9;havoc __utac_acc__Specification2_spec__2_#t~ret9; 268#L211 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 347#L211-1 [2021-10-28 09:35:37,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:37,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 09:35:37,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:37,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235152913] [2021-10-28 09:35:37,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:37,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:35:37,666 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:35:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:35:37,741 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:35:37,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:37,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1686527799, now seen corresponding path program 1 times [2021-10-28 09:35:37,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:37,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232618208] [2021-10-28 09:35:37,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:37,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:37,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:37,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232618208] [2021-10-28 09:35:37,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232618208] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:37,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:37,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:35:37,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316515933] [2021-10-28 09:35:37,766 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:35:37,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:37,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:35:37,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:35:37,768 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:37,865 INFO L93 Difference]: Finished difference Result 155 states and 217 transitions. [2021-10-28 09:35:37,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:35:37,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 217 transitions. [2021-10-28 09:35:37,871 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2021-10-28 09:35:37,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 155 states and 217 transitions. [2021-10-28 09:35:37,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155 [2021-10-28 09:35:37,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155 [2021-10-28 09:35:37,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 217 transitions. [2021-10-28 09:35:37,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:35:37,877 INFO L681 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2021-10-28 09:35:37,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 217 transitions. [2021-10-28 09:35:37,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-10-28 09:35:37,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 155 states have (on average 1.4) internal successors, (217), 154 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:37,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 217 transitions. [2021-10-28 09:35:37,892 INFO L704 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2021-10-28 09:35:37,892 INFO L587 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2021-10-28 09:35:37,892 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:35:37,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155 states and 217 transitions. [2021-10-28 09:35:37,895 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2021-10-28 09:35:37,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:35:37,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:35:37,897 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:37,897 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:37,898 INFO L791 eck$LassoCheckResult]: Stem: 634#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 581#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 582#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 552#L83 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 553#L177 assume 0 != main_~tmp~0; 597#L151 ~methAndRunningLastTime~0 := 0; 617#L200 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 626#L211-1 [2021-10-28 09:35:37,898 INFO L793 eck$LassoCheckResult]: Loop: 626#L211-1 assume !false; 549#L560 assume test_~splverifierCounter~0 < 4; 550#L561 test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 576#L569 assume !(0 != test_~tmp~6); 519#L569-1 test_~tmp___0~3 := test_#t~nondet43;havoc test_#t~nondet43; 520#L579 assume !(0 != test_~tmp___0~3); 526#L579-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 527#L589 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 532#L597-2 assume !(0 != ~pumpRunning~0); 599#L351 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 602#L409 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 529#L383-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret40, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 530#L321-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 554#L326-1 isHighWaterLevel_#t~ret40 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret40;havoc isHighWaterLevel_#t~ret40; 555#L511-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 542#L511-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 543#L517-1 processEnvironment__wrappee__highWaterSensor_#t~ret21 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret21;havoc processEnvironment__wrappee__highWaterSensor_#t~ret21; 556#L387-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 533#L358 havoc __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_#t~ret10, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 534#L281 __utac_acc__Specification2_spec__2_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret9;havoc __utac_acc__Specification2_spec__2_#t~ret9; 539#L211 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 626#L211-1 [2021-10-28 09:35:37,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:37,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 09:35:37,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:37,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026208477] [2021-10-28 09:35:37,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:37,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:35:37,992 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:35:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:35:38,083 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:35:38,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:38,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1049372309, now seen corresponding path program 1 times [2021-10-28 09:35:38,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:38,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090891148] [2021-10-28 09:35:38,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:38,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:35:38,092 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:35:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:35:38,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:35:38,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:38,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1472453361, now seen corresponding path program 1 times [2021-10-28 09:35:38,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:38,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030171517] [2021-10-28 09:35:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:38,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:35:38,159 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:35:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:35:38,230 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:36:46,290 WARN L207 SmtUtils]: Spent 1.13 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 09:37:55,016 WARN L207 SmtUtils]: Spent 33.39 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 09:37:55,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:37:55 BoogieIcfgContainer [2021-10-28 09:37:55,164 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:37:55,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:37:55,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:37:55,166 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:37:55,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:35:36" (3/4) ... [2021-10-28 09:37:55,169 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:37:55,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:37:55,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:37:55,252 INFO L168 Benchmark]: Toolchain (without parser) took 140678.97 ms. Allocated memory was 83.9 MB in the beginning and 121.6 MB in the end (delta: 37.7 MB). Free memory was 46.5 MB in the beginning and 61.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:55,253 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 63.6 MB in the beginning and 63.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:37:55,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.49 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 46.3 MB in the beginning and 67.8 MB in the end (delta: -21.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:55,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.08 ms. Allocated memory is still 100.7 MB. Free memory was 67.8 MB in the beginning and 64.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:55,257 INFO L168 Benchmark]: Boogie Preprocessor took 86.72 ms. Allocated memory is still 100.7 MB. Free memory was 64.1 MB in the beginning and 61.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:55,258 INFO L168 Benchmark]: RCFGBuilder took 1199.64 ms. Allocated memory is still 100.7 MB. Free memory was 61.5 MB in the beginning and 60.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:55,259 INFO L168 Benchmark]: BuchiAutomizer took 138515.44 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 60.1 MB in the beginning and 63.5 MB in the end (delta: -3.3 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:55,260 INFO L168 Benchmark]: Witness Printer took 85.75 ms. Allocated memory is still 121.6 MB. Free memory was 63.5 MB in the beginning and 61.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:55,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 63.6 MB in the beginning and 63.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 654.49 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 46.3 MB in the beginning and 67.8 MB in the end (delta: -21.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 129.08 ms. Allocated memory is still 100.7 MB. Free memory was 67.8 MB in the beginning and 64.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.72 ms. Allocated memory is still 100.7 MB. Free memory was 64.1 MB in the beginning and 61.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1199.64 ms. Allocated memory is still 100.7 MB. Free memory was 61.5 MB in the beginning and 60.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 138515.44 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 60.1 MB in the beginning and 63.5 MB in the end (delta: -3.3 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. * Witness Printer took 85.75 ms. Allocated memory is still 121.6 MB. Free memory was 63.5 MB in the beginning and 61.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 155 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 138.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 138.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 155 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 337 SDtfs, 278 SDslu, 72 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 559]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10015} State at position 1 is {NULL=0, NULL=0, NULL=10015, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d7698dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4411905f=83, NULL=10021, NULL=10026, methaneLevelCritical=0, NULL=0, NULL=10017, tmp=0, retValue_acc=0, NULL=10035, NULL=0, tmp___1=0, NULL=10027, NULL=0, NULL=10042, NULL=10038, cleanupTimeShifts=4, NULL=10043, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1aa4c8fa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bd2ae97=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@137a6055=0, NULL=0, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a21c37f=0, \result=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, NULL=10016, NULL=0, NULL=0, \result=1, NULL=0, tmp=1, NULL=0, NULL=10023, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=0, methAndRunningLastTime=0, NULL=10024, NULL=10019, tmp=0, head=0, NULL=10025, NULL=0, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e859c0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@caf1c6e=0, NULL=10031, tmp___0=0, NULL=0, NULL=0, NULL=10020, NULL=0, NULL=0, NULL=10029, NULL=10032, tmp=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=10034, NULL=0, retValue_acc=0, NULL=10030, \result=0, NULL=10041, NULL=10040, \result=0, NULL=10018, NULL=0, NULL=0, NULL=10033, tmp___0=0, NULL=10036, NULL=10039, retValue_acc=1, tmp___2=83, splverifierCounter=0, NULL=0, \result=0, NULL=10022, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46720ad4=0, NULL=10028, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@474f556d=0, NULL=10037} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L88] int cleanupTimeShifts = 4; [L194] int methAndRunningLastTime ; [L238] int waterLevel = 1; [L239] int methaneLevelCritical = 0; [L344] int pumpRunning = 0; [L345] int systemActive = 1; [L785] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L168] int retValue_acc ; [L169] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L175] tmp = valid_product() [L177] COND TRUE \read(tmp) [L199] methAndRunningLastTime = 0 [L550] int splverifierCounter ; [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L554] int tmp___2 ; [L557] splverifierCounter = 0 Loop: [L559] COND TRUE 1 [L561] COND TRUE splverifierCounter < 4 [L567] tmp = __VERIFIER_nondet_int() [L569] COND FALSE !(\read(tmp)) [L577] tmp___0 = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp___0)) [L587] tmp___2 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___2) [L544] systemActive = 1 [L351] COND FALSE !(\read(pumpRunning)) [L358] COND TRUE \read(systemActive) [L406] int tmp ; [L409] COND FALSE !(\read(pumpRunning)) [L380] int tmp ; [L383] COND TRUE ! pumpRunning [L503] int retValue_acc ; [L504] int tmp ; [L505] int tmp___0 ; [L318] int retValue_acc ; [L321] COND TRUE waterLevel < 2 [L322] retValue_acc = 1 [L323] return (retValue_acc); [L509] tmp = isHighWaterSensorDry() [L511] COND TRUE \read(tmp) [L512] tmp___0 = 0 [L516] retValue_acc = tmp___0 [L517] return (retValue_acc); [L385] tmp = isHighWaterLevel() [L387] COND FALSE !(\read(tmp)) [L204] int tmp ; [L205] int tmp___0 ; [L277] int retValue_acc ; [L280] retValue_acc = methaneLevelCritical [L281] return (retValue_acc); [L209] tmp = isMethaneLevelCritical() [L211] COND FALSE !(\read(tmp)) [L227] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:37:55,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd1b15-fe47-40ee-9169-fba519a9897f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...